public function testXdigit()
{
$this->assertEquals('1234', $this->object->xdigit('1234'));
$this->assertEquals('1234', $this->object->xdigit('1 2 3 4'));
$this->assertEquals('a1b2C3', $this->object->xdigit('a1b2C3'));
$this->assertEquals('e5e', $this->object->xdigit('t e 5 t e'));
$this->assertEquals('ee123', $this->object->xdigit('tes$t@e123(*)'));
$this->assertEquals('', $this->object->xdigit('!@#$%$*()-_+=[]{}?/:;.><|\\qwuygHJKL'));
$this->assertTrue($this->object->validXdigit('1234'));
$this->assertTrue($this->object->validXdigit('abcdefABCDEF1234567890'));
$this->assertTrue($this->object->validXdigit('a1b2C3'));
$this->assertFalse($this->object->validXdigit('TESTE'));
$this->assertFalse($this->object->validXdigit('t e S t e'));
$this->assertFalse($this->object->validXdigit('tes$t@e123(*)'));
$this->assertFalse($this->object->validXdigit('TESTE.'));
$this->assertFalse($this->object->validXdigit('!@#$%$*()-_+=[]{}?/:;.><|\\'));
}
